In a tweet posted late Thursday night, Dorsey shared a photograph of his computer running bitcoin node software. Nodes are part of the cryptocurrency’s infrastructure, validating transactions. They keep a full copy of bitcoin’s blockchain ledger, which records all transactions in the cryptocurrency. 

Dorsey’s involvement comes as bitcoin and other cryptocurrencies are seeing a surge in popularity and prices. Though volatile, bitcoin is currently trading at almost $38,000 per coin after setting an all-time high of just under $42,000 last month. Many cryptocurrencies have grown popular in recent years, including alternative, or “alt coin” cryptocurrency like Dogecoin. Cryptocurrencies are stored in digital wallets, a design feature that can cause headaches if passwords are lost or forotten.

a close up of a computer keyboard

The Twitter and Square CEO isn’t the only high-profile individual to support bitcoin. Earlier this year, Elon Musk temporarily tagged his Twitter account with the hashtag #bitcoin, an apparent display of support for the cryptocurrency. The Tesla chief has also tweeted about Dogecoin, a cryptocurrency that started as a joke.

Last year, a massive bitcoin scam played out on Twitter after scammers targeted the accounts of Bill GatesKanye West, Barack Obama, Musk and other famous tech executives, entertainers and politicians. Apple , Uber and other businesses were also caught up in the sprawling hack, which Twitter attributed to a social engineering attack on its employees.



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